SAE-AISI 1040 is an alloy of iron, further classified as a carbon steel. 1040 is the SAE-AISI designation for this material. 1.0511 is the EN numeric designation. And G10400 is the UNS number.
It has two common variants, each represented as a separate material. The Material Properties section below shows ranges encompassing all variants. For more specific values, follow the links in the Variant Materials section.
Base Metal Price3.0 % rel
Brinell Hardness160 to 180
Density7.8 g/cm3 (490 lb/ft3)
Elastic (Young's, Tensile) Modulus210 GPa (30 x 106 psi)
Elongation at Break13 to 19 %
Modulus of Resilience (Unit Resilience)230 to 670 kJ/m3
Specific Heat Capacity450 J/kg-K
Strength to Weight Ratio72 to 81 kN-m/kg
Tensile Strength: Ultimate (UTS)560 to 630 MPa (81 to 91 x 103 psi)
Tensile Strength: Yield (Proof)310 to 530 MPa (45 to 77 x 103 psi)
Thermal Expansion12 µm/m-K
Unit Rupture Work (Ultimate Resilience)62 to 72 MJ/m3
The length of each bar compares the given value to the highest value in the database.
Iron (Fe)98.6 to 99.03 %
Manganese (Mn)0.6 to 0.9 %
Carbon (C)0.37 to 0.44 %
Sulfur (S)0 to 0.050 %
Phosphorus (P)0 to 0.040 %
ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008